ATE1139T1 - PROCESS FOR TRANSFERRING EXTRACTION RESIDUE FROM PHOSPHORIC ACID CLEANUP INTO SOLID LANDFILL PRODUCTS. - Google Patents

PROCESS FOR TRANSFERRING EXTRACTION RESIDUE FROM PHOSPHORIC ACID CLEANUP INTO SOLID LANDFILL PRODUCTS.

Info

Publication number
ATE1139T1
ATE1139T1 AT80101057T AT80101057T ATE1139T1 AT E1139 T1 ATE1139 T1 AT E1139T1 AT 80101057 T AT80101057 T AT 80101057T AT 80101057 T AT80101057 T AT 80101057T AT E1139 T1 ATE1139 T1 AT E1139T1
Authority
AT
Austria
Prior art keywords
phosphoric acid
raffinates
reaction
suspension
extraction residue
Prior art date
Application number
AT80101057T
Other languages
German (de)
Inventor
Klaus Dr. Schroedter
Reinhard Dr. Gradl
Klaus-Peter Dr. Ehlers
Wolfgang Dr. Scheibitz
Original Assignee
Hoechst Aktiengesellschaft
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hoechst Aktiengesellschaft filed Critical Hoechst Aktiengesellschaft
Application granted granted Critical
Publication of ATE1139T1 publication Critical patent/ATE1139T1/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
    • A62D3/00—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances
    • A62D3/30—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by reacting with chemical agents
    • A62D3/36—Detoxification by using acid or alkaline reagents
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B25/00—Phosphorus; Compounds thereof
    • C01B25/16—Oxyacids of phosphorus; Salts thereof
    • C01B25/46—Preparation involving solvent-solvent extraction
    • C01B25/461—Preparation involving solvent-solvent extraction the phosphoric acid present in the medium obtained after reaction being first extracted from the liquid phase formed or separated then re-extracted as free acid by using water or as a phosphate by using a basic compound
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/008—Sludge treatment by fixation or solidification
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
    • A62D2101/00—Harmful chemical substances made harmless, or less harmful, by effecting chemical change
    • A62D2101/40—Inorganic substances
    • A62D2101/45—Inorganic substances containing nitrogen or phosphorus

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Analytical Chemistry (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Water Supply & Treatment (AREA)
  • General Chemical & Material Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Processing Of Solid Wastes (AREA)
  • Removal Of Specific Substances (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Seasonings (AREA)
  • Detergent Compositions (AREA)
  • Storage Device Security (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Extraction Or Liquid Replacement (AREA)
  • Saccharide Compounds (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Compounds Of Unknown Constitution (AREA)
  • Paper (AREA)

Abstract

The invention relates to a process permitting acid salt residues, hereinafter called raffinates, which are obtained in the decontamination of phosphoric acid by extraction with a solvent, to be converted to solid deposition products, wherein the raffinates are admixed with a quantity of water necessary for them to ensure, after reaction with hydrate of lime or quicklime, the formation of an aqueous filterable suspension. More particularly, the raffinates are admixed with a quantity of hydrate of lime or quicklime necessary for them to ensure, after reaction and filtration of the suspension, the formation of a filter cake having a pH-value within the range 9 to 14. The reaction suspension is filtered as soon as it has assumed a pH-value within the range 5 to 8 and the resulting filter cake is allowed to react completely and deposited.
AT80101057T 1979-03-12 1980-03-03 PROCESS FOR TRANSFERRING EXTRACTION RESIDUE FROM PHOSPHORIC ACID CLEANUP INTO SOLID LANDFILL PRODUCTS. ATE1139T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19792909572 DE2909572A1 (en) 1979-03-12 1979-03-12 METHOD FOR CONVERTING EXTRACTION RESIDUES FROM PHOSPHORIC ACID CLEANING IN SOLID DEPOSITE PRODUCTS
EP80101057A EP0017741B1 (en) 1979-03-12 1980-03-03 Process for converting residues from the purification of phosphoric acid by extraction into solid waste products suitable for deposition

Publications (1)

Publication Number Publication Date
ATE1139T1 true ATE1139T1 (en) 1982-06-15

Family

ID=6065102

Family Applications (1)

Application Number Title Priority Date Filing Date
AT80101057T ATE1139T1 (en) 1979-03-12 1980-03-03 PROCESS FOR TRANSFERRING EXTRACTION RESIDUE FROM PHOSPHORIC ACID CLEANUP INTO SOLID LANDFILL PRODUCTS.

Country Status (18)

Country Link
US (1) US4279876A (en)
EP (1) EP0017741B1 (en)
JP (1) JPS6044998B2 (en)
AT (1) ATE1139T1 (en)
BR (1) BR8001427A (en)
CA (1) CA1136830A (en)
DD (1) DD149795A5 (en)
DE (2) DE2909572A1 (en)
DK (1) DK151217C (en)
ES (1) ES487988A1 (en)
FI (1) FI67069C (en)
IE (1) IE49648B1 (en)
IL (1) IL59546A (en)
MA (1) MA18768A1 (en)
MX (1) MX153241A (en)
PH (1) PH15387A (en)
SU (1) SU959619A3 (en)
ZA (1) ZA801407B (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3135801A1 (en) * 1981-09-10 1983-03-24 Hoechst Ag, 6000 Frankfurt METHOD FOR TREATING EXTRACTION RESIDUES OF PHOSPHORIC ACID CLEANING
DE3502215A1 (en) * 1985-01-24 1986-07-24 Hoechst Ag METHOD FOR CONVERTING RESIDUES CONTAINING HEAVY METALS IN SOLID LANDSCAPEABLE PRODUCTS
DE3522822A1 (en) * 1985-06-26 1987-01-02 Hoechst Ag METHOD FOR PROCESSING RESIDUES CONTAINING HEAVY METALS FROM THE PURIFICATION OF RAW PHOSPHORIC ACIDS
JPS6222296U (en) * 1985-07-25 1987-02-10
US4781905A (en) * 1986-05-30 1988-11-01 Yu Ming Jiang Process for producing phosphoric acid and/or phosphates from wet-process phosphoric acid and an extractant therein
DE3710804A1 (en) * 1987-03-31 1988-10-20 Basf Ag METHOD FOR THE CLEANING AND DISPOSAL OF SOOT AND ASHYWOOD
US4783328A (en) * 1987-12-14 1988-11-08 Fmc Corporation Utilization of phosphourus containing by-products
EP0375653A3 (en) * 1988-12-23 1991-03-20 Perlmooser Zementwerke Aktiengesellschaft Process for the treatment of waste
DE3913853A1 (en) * 1989-04-27 1990-10-31 Hoechst Ag METHOD FOR PROCESSING PHOSPHORIC ACID
DE59000341D1 (en) * 1989-07-14 1992-11-12 Techform Eng Ag METHOD FOR INERTIZING AND / OR IMMOBILIZING POLLUTANTS.
JPH0346696U (en) * 1989-09-01 1991-04-30
GB9124353D0 (en) * 1991-11-15 1992-01-08 Albright & Wilson Immobilisation of metal contaminants from a liquid to a solid metal
DE102007011972B4 (en) * 2007-03-09 2010-04-22 Oase Gmbh Surface suction for ponds or the like
CN117696610B (en) * 2024-01-23 2024-11-22 瓮福紫金化工股份有限公司 A method for crushing and screening residual acid filter residue

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3375066A (en) * 1963-08-24 1968-03-26 Yawata Chem Ind Co Ltd Process for the continuous production of gypsum and iron oxide from waste sulfuric acid pickle liquor and a calcium compound
JPS5146679B2 (en) * 1973-03-23 1976-12-10
GB1485067A (en) * 1975-07-25 1977-09-08 Tioxide Group Ltd Effluent treatment process
JPS52126694A (en) * 1976-04-16 1977-10-24 Toyo Soda Mfg Co Ltd Removal of scale coming out from residual solution after extraction
DE2657190C2 (en) 1976-12-17 1982-11-04 Hoechst Ag, 6000 Frankfurt Process for purifying wet process phosphoric acid
DE2657189B2 (en) * 1976-12-17 1980-02-07 Hoechst Ag, 6000 Frankfurt Process for the purification of NaB process phosphoric acid
DE2657180C3 (en) * 1976-12-17 1980-06-04 Continental Gummi-Werke Ag, 3000 Hannover Method for dismantling and installing elastic bearing bodies for supporting building structures and structural parts and bearing bodies for carrying out the method

Also Published As

Publication number Publication date
FI67069B (en) 1984-09-28
PH15387A (en) 1982-12-23
BR8001427A (en) 1980-11-11
JPS55124591A (en) 1980-09-25
FI67069C (en) 1985-01-10
ZA801407B (en) 1981-04-29
DD149795A5 (en) 1981-07-29
MA18768A1 (en) 1980-10-01
IE800497L (en) 1980-09-12
ES487988A1 (en) 1980-07-01
DE3060486D1 (en) 1982-07-22
EP0017741B1 (en) 1982-06-02
IL59546A (en) 1983-09-30
CA1136830A (en) 1982-12-07
JPS6044998B2 (en) 1985-10-07
DK151217B (en) 1987-11-16
DE2909572A1 (en) 1980-09-25
US4279876A (en) 1981-07-21
MX153241A (en) 1986-09-02
IE49648B1 (en) 1985-11-13
FI800729A7 (en) 1980-09-13
DK104380A (en) 1980-09-13
EP0017741A1 (en) 1980-10-29
SU959619A3 (en) 1982-09-15
DK151217C (en) 1988-06-27

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